Clutch.



K. GRITTENDEN.

CLUTGH.

APLIGATION FILED JULY 12, 1910.

1,34:,694. R Patented Aug. 6, 1912.

UNITED [STATES PATEN'L; oFFIoE.

KENNETH CRITTENDEN, OF DETROIT, MICHIGAN.

CLUTCH.

1,034,694. Specication of Letters Patent. Patented Aug. 6, 1912.

Appiiication med July 12, 19in. serial No. 571,549.

To all whom 'it may conce'rn:

Be it known that I, KENNETH Cnrr'mN- m-m, a citizen of the United States of America, residing atDetroit, in the county of Vayne and State ofMichigan, have 1nvented certain new and usetul Improvements in Clutches, of vwhich the following is a specification, reference being had therein to the accompanying drawings.

In the construction'of .friction clutches of themultiple disk type, itfis desirable .that the pressure usedv in vlocking. the clutch -be applied as evenly-as :possible to therings inorder thatthe wearon the rings beproperly distributed and inl order that the clutch work smoothly. This inventionv relates to fmultiple ,disk clutches and more particularly to means-for setting up theclutch vwhereby the 'fol-.ce -applied to thefi'iction me-n-ibers'iS-evenly distributed.v :i

The invention consists in the ...matters hereinafter Ivet forth, and lmore.'pai'tieularly pointed outin theiappeded-jlaimsz.-f'. i Referring to the dravingsfFfignre.- 1 is a bodies features of the inventi'org'iand litigi 2, is avies;7 'in-. lollgitudinal 'sgtion-:itheleal through together" with a Excenpontihm.. f a flyvheelL 'l e" i In the drawings ainam )late-*1g husafa rh 2 extending from" its 'front lacevhiiehui' is centered on "the 'hub ofainoto. 4 or other driving member. A seme. ner frictioni di's'lg'sifarci= n'n-ftotatahlyuse cured'inany preferred manne sf'by stlnls'- able pins 11. -The latter :ils-fo act as .fulcrums ofthe slide on the 5th-[just of thexspringand o f tl1 e rock arm is iransmitled axially/' o f'fth'e' and on which levers 12 are pivoted between the lugs of each pair with their inner ends bearf lng against a. thrust collar 13 pressing against the outerv face of the friction-mugs.

The outer ends of the levers are spread outwardly by the wedging action of-the cone face le lof a slide collar 15. Normally the latter is held concentrically `around the hub.

by a .Banged ring 17, 'screwthre'aded on the outer end of 'the hub 2,- the slide :beinvf v loosely rotatable and rcciprocable on said ring'and free to move laterally onthe hub.

A spiral springr 19 is in compression between-A an. inner annular flange QO'on the slide and th e me1nbcrf-17 and keeps the disks and plates normally in Contact While positive arms 2 1 extending from a rock 'shaft L2 ,that is arranged to be oscillated through' any .suitable controlling lever. A gearirkeyed .or secured on an extension 210i? the/.huh

r movement of the slide is obtained hy rock '70 transmits power therefrom. extensionlA acting, if desired, as a bearinnf'fo'r thez end' of a follower shaft.

.i In operation.` movement of t at-.tions of. the rock t1- uisv thrusts thefriction 'ings into .fr ietional Aenggalge'rent- With/the 1s ob Ignace said ends.. of the studs-:u id'p 'ci same from turning and losing theii nient in the plate and also hold the levers in operath-'c position.

adjust :S

Obviously, changes in the details of construction may be made without departing` from the spiritof the invention and I doln'ot care to limit myself to any particular forlii or arrangement of parts.

That I claim as my invention is 1. A clutch comprising a rotatable driving member, a rotatable driven member having a. hub ortion, friction rings at.- tached to the driving member to turn therewith, friction disks alternating with said rings, studs extending laterally from the driven member in engagement with said disks to cause said member to turn with said disks, a ring-shaped spider surrounding said hub portion of the driven member and connecting the outer free ends of said studs and supported by said studs independently of the hub portion, and means for moving the disks and rings into frictional contact.

2. A clutch comprising a rotatable driv- -ing member, a rotatable driven member,

A studs extending from the face of said plate,

friction disks non-rotatably secured on the plate by said studs, friction rings alternating with the disks non-rotatablysecured on the driving member, a spider secured to and supported by the studs concentrically'with the plate hub, levers pivotally mounted on the spider with their inner ends. adapted to compress the disks and rings, a slide collar reciprocablc on the hub of the member adapted to oscillate the levers when shifted on the hub, and means for shifting the co1- lar.

4.v A clutch comprising a rotatable dri\'' ing lnembeiwhaving a hub extendin from one face thereof, va plate having a hu journaled on the member hub, studs ext-ending laterally from the face of the plate around the hub thereof, friction disks centered on the hub and att-ached to the plate by said studs to rotate therewith, friction'rings arranged alternately with the 'disks and non. rotatably attached Ato the driving member to turn therewith, a spider having .pairs of inwardly extending lugs with each pair attached to theouter end of a plate stud, a thrust collar, levers "each pirotedbetween the spider lugs with its inner end bearing .shifting the collar.

against the thrust collar, a slide collar longitudinally reciprocable upon the hub of the plate and adapted to force the levers against the thrust collar, and means to shift' ,studs thereof, friction rings non-rotatably secured to the driving member in alternate relation with the disks by the studs on said member, a thrust collar bearing against Athe outer face of the assembled rings, and disks, a spider having'pairs of inwardly projecting lugs each pair embracing the .outer end of one of the studs, a lever pivotally attached to the outer end of each stud between said ears to bear at one end against. the thrust collar, a slide collar longitudinally reciprocable on the plate hub between the outer ends of the levers, and means for shifting the slide collar.

6. A clutch comprising a rotatable drv ing member, a plate, a hub journaled concentric'ally on the driving member, studs extending laterally from the plate around the hub, friction disks on the plate hub nonrotatably attached thereto by said studs, friction rings in alternate relation'with the disks non-rotatably mounted on the driving member, a 'thrust collar bearing against the outer face of the assembled rings and disks, levers each fulcrumed 'upon the end of one of the studs with its inner end bearing against the thrust collar, a tiang'ed ring loosely mounted upon the outer end of the hub, a slide collar longitudinally reciprocable and free to movelaterally upon the plate huband haviiig a cone surface adapted to engage the outer ends ofthe/levers and force their inner ends against-the thrust collar when said collar is moved longitudinally, a spring in 'compression between thej ring and collar, and means for 7. A clutch comprising ing member, a plate provided with a hub journaled concentrically on the driving member, studs having screwthreadelengagement with said plate at one end and projecting laterally therefrom around the hub, friction disks attached to the plate by the studs, friction rings alternating with the a rotatable drivi disks and attached to the driving member to turn therewith, a spider having pairs of lugs embracing the outer ends of said studs and detacliably att-ached` thereto, a. lever between each pair of lugs pivotally attached to the end of the stud embraced by said lugs, a thrust collar bearing against the outer face of the assembled disks and rings disks, and means for `positively shifting vthe 1o against which collar the inner ends of the slide collar. levers beur, a slide collar longitudinally re- In testimony whereof I aflix my signature eiprocable upon the huh of said plate and in presence of two witnesses.

provided with a conical face adapted t0 en- KENNETH CRITTENDEN. gage the outer ends of the levers and .spread the same when the collar vis moved toward VVit-nesses:

thi` disks, u .spring around the hub :ngag- ANNA M. DoRR,

ing the collar to move the same toward the l OTTO F. BARTHEL. 

